Mayor Pete Buttigieg is surging in the 2020 polls & his war of words with VP Mike Pence over faith & LGBT Rights might score him more points; Will Bernie Sanders's brand take a hit after he reveals his taxes on Monday?; The House Oversight Committee plans to subpoena Trump's accounting firm & give the IRS an ultimatum for his Trump's tax returns; Trump considering releasing detained immigrants in sanctuary cities as political retribution; Acting Defense Secy. Patrick Shanahan drew skepticism as he appeared in front of the Senate Armed Services Committee to pitch the "Space Force;"

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